A block is gently released from rest on a smooth plane inclined at to the horizontal

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

4\,\text{kg}

block is gently released from rest on a smooth plane inclined at

30^{\circ}

to the horizontal. Neglect air resistance. (i) Calculate the acceleration of the block down the plane. (ii) Find its speed after

3\,\text{s}

. (iii) Determine the distance it travels in the first

3\,\text{s}

. (iv) Compute the work done by the component of gravitational force along the plane in this interval.